The following is a partial pinout for the Toshiba ASICs used in VA2 and VA2.3 model 2 Genesis consoles. These ASICs have the part numbers 315-5685 (Toshiba TC6158AF) and 315-5786 (Toshiba T9N13BF). Note that this pinout is not totally complete as there are several pins which are unused and whose function is unknown.
| Pin Number | Function | Pin Number | Function | Pin Number | Function | Pin Number | Function |
|---|---|---|---|---|---|---|---|
| 1 | BG | 53 | VA5 | 105 | VCC | 157 | SRES |
| 2 | BGACK | 54 | VA20 | 106 | VCC | 158 | VCC |
| 3 | BR | 55 | VA13 | 107 | Red | 159 | WRES |
| 4 | HALT | 56 | VA19 | 108 | Green | 160 | GND |
| 5 | CART | 57 | VA6 | 109 | Blue | 161 | Unknown (NC) |
| 6 | TIME | 58 | VA18 | 110 | GND | 162 | Unknown (NC) |
| 7 | M3 | 59 | VA12 | 111 | GND | 163 | Unknown (NC) |
| 8 | VD11 | 60 | GND | 112 | SOUND | 164 | GND |
| 9 | UWR | 61 | VCC | 113 | ZRAM | 165 | VCC |
| 10 | VCC | 62 | VA10 | 114 | REF | 166 | PA4 |
| 11 | VD3 | 63 | VA7 | 115 | ZRD | 167 | PA0 |
| 12 | LWR | 64 | VA9 | 116 | IOREQ | 168 | PA1 |
| 13 | VD4 | 65 | VA11 | 117 | ZWR | 169 | PA2 |
| 14 | VRES | 66 | VA8 | 118 | MREQ | 170 | PA3 |
| 15 | GND | 67 | VPA | 119 | ZBAK | 171 | PA5 |
| 16 | VD10 | 68 | IPL2 | 120 | WAIT | 172 | PA6 |
| 17 | ASEL | 69 | IPL1 | 121 | NMI | 173 | PB0 |
| 18 | VD2 | 70 | FC1 | 122 | ZBR | 174 | PB1 |
| 19 | VD12 | 71 | FC0 | 123 | INT | 175 | PB2 |
| 20 | VD5 | 72 | Unknown (NC) | 124 | ZRES | 176 | PB3 |
| 21 | VD13 | 73 | Unknown (NC) | 125 | ZD1 | 177 | PB5 |
| 22 | VD9 | 74 | Unknown (NC) | 126 | M1 | 178 | PB6 |
| 23 | VD14 | 75 | Unknown (NC) | 127 | ZD0 | 179 | PB4 |
| 24 | VD1 | 76 | Unknown (NC) | 128 | ZD7 | 180 | DISK |
| 25 | VD15 | 77 | Unknown (NC) | 129 | ZD2 | 181 | ROM |
| 26 | VD6 | 78 | Unknown (NC) | 130 | ZA0 | 182 | RAS2 |
| 27 | CAS2 | 79 | AD2 | 131 | ZA1 | 183 | FDC |
| 28 | VD8 | 80 | AD3 | 132 | ZD6 | 184 | FRES |
| 29 | DTACK | 81 | SE0 | 133 | ZA2 | 185 | FDWR |
| 30 | VD0 | 82 | SD2 | 134 | ZD5 | 186 | IA14 |
| 31 | VCLK | 83 | SD6 | 135 | ZA3 | 187 | EOE |
| 32 | VD7 | 84 | SD3 | 136 | ZD3 | 188 | NOE |
| 33 | AS | 85 | SD7 | 137 | ZA4 | 189 | RAS0 |
| 34 | CE | 86 | SC | 138 | ZD4 | 190 | Unknown (NC) |
| 35 | VA1 | 87 | SD0 | 139 | ZA5 | 191 | Unknown (NC) |
| 36 | CAS0 | 88 | SD4 | 140 | ZCLK | 192 | Unknown (NC) |
| 37 | VA17 | 89 | SD1 | 141 | ZA6 | 193 | Unknown (NC) |
| 38 | GND | 90 | SD5 | 142 | GND | 194 | Unknown (NC) |
| 39 | EDCLK | 91 | OE1 | 143 | ZA15 | 195 | Unknown (NC) |
| 40 | VA2 | 92 | AD0 | 144 | ZA7 | 196 | Unknown (NC) |
| 41 | VSYNC | 93 | AD1 | 145 | ZA14 | 197 | Unknown (NC) |
| 42 | VA16 | 94 | WE0 | 146 | ZA8 | 198 | Unknown (NC) |
| 43 | VCC | 95 | RAS1 | 147 | VCC | 199 | Unknown (NC) |
| 44 | HSYNC | 96 | GND | 148 | ZA13 | 200 | Unknown (NC) |
| 45 | VA3 | 97 | VCC | 149 | ZA9 | 201 | UDS |
| 46 | Ys | 98 | AD6 | 150 | ZA12 | 202 | LDS |
| 47 | VA15 | 99 | AD5 | 151 | ZA10 | 203 | R/W |
| 48 | VA23 | 100 | AD4 | 152 | ZA11 | 204 | GND |
| 49 | VA4 | 101 | AD7 | 153 | NTSC/PAL | 205 | VCC |
| 50 | VA22 | 102 | CAS1 | 154 | VCC | 206 | PSG |
| 51 | VA14 | 103 | SBCR | 155 | MCLK | 207 | GND |
| 52 | VA21 | 104 | CSYNC | 156 | DOM/EXP | 208 | VCC |